METHOD AND APPARATUS FOR DATA COMMUNICATION OF VEHICLE

• US 20170085340A1
• Filed: 12/03/2015
• Published: 03/23/2017
• Est. Priority Date: 09/22/2015
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Park, Jae Woo, Lee, Dong Youl, Han, Sang Jae, Kim, Chul Min
• Granted Patent: US 10,020,916 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 21/00 Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks safety belts or body harnesses in vehicles B60R22/00; devices, apparatus or methods for life-saving in general A62B; safety devices for propulsion unit control specially adapted for, or arranged in, vehicles B60K28/00; seats constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats, B60N2/42; energy-absorbing arrangements for hand wheels for steering vehicles B62D1/11; energy-absorbing arrangements for vehicle steering columns B62D1/19; harnessing in aircraft B64D25/00
• CPC Class Codes: G07C 5/00 Registering or indicating the working of vehicles
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H04B 1/3822 specially adapted for use in vehicles H04B1/3827 takes precedence
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 12/40 Bus networks
• CPC Class Codes: H04L 2012/40215 Controller Area Network CAN
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A vehicle communication system includes at least one vehicle controller configured to control functions of a vehicle and configured to output data related to the vehicle. A communication unit is configured to transmit the data output from the vehicle controller to an external data collecting device. A memory is configured to store the data. A network managing unit is configured to control the communication unit to output the data to the data collecting device when the data is different from previous data transmitted to the data collecting device.

Claims

1. A vehicle communication system comprising:

at least one vehicle controller configured to control functions of a vehicle and configured to output data related to the vehicle;

a communication unit configured to transmit the data output from the vehicle controller to an external data collecting device;

a memory configured to store the data; and

a network managing unit configured to control the communication unit to output the data to the data collecting device when the data is different from previous data transmitted to the data collecting device.

2. The vehicle communication system of claim 1, wherein the data is transmitted in a data format including packet number information, bit number information indicating a bit number from which the data starts, data length information, and a control area network (CAN) identifier identifying a message, and

wherein when the data is changed partially to be different from the previous data transmitted to the data collecting device, a position of a changed data bit may be included in the bit number information and a length of the changed data may be included in the data length information.

3. The vehicle communication system of claim 1, wherein the data transmitted to the data collecting device is stored in the memory, and

wherein when a data re-transmission request is received from the data collecting device, the network managing unit re-transmits the data stored in the memory to the data collecting device for a preset number of times.

4. The vehicle communication system of claim 1, wherein the network managing unit transmits the entire data to the data collecting device regardless of the data change on a preset cycle.

5. The vehicle communication system of claim 1, wherein the network managing unit determines a data disuse area for a period of time in which non-available data is output, and does not transmit data output from the data disuse area to the data collecting device.

6. The vehicle communication system of claim 1, wherein the network managing unit determines whether data output from two or more vehicle controllers are duplicated, and transmits one of the data output from the two or more vehicle controller to the data collecting device, when the data are duplicated based on the determination result.

7. A vehicle data communication method comprising:

generating, by a vehicle controller, data related to a vehicle;

determining, by a network managing unit, whether the generated data is different from previous data transmitted to an external data collecting device; and

transmitting, by a communication unit, the generated data to the external data collecting device when the generated data is different from the previous data transmitted to the external data collecting device, based on the determination result.

8. The vehicle data communication method of claim 7, wherein the data is transmitted in a data format including packet number information, bit number information indicating a bit number from which the data starts, data length information, and a CAN identifier identifying a message, and

wherein when the data is partially changed to be different from the previous data transmitted to the data collecting device, a position of a changed data bit may be included in the bit number information and a length of the changed data may be include in the data length information.

9. The vehicle data communication method of claim 7, further comprising:

storing the data transmitted to the data collecting device; and

re-transmitting the stored data to the data collecting device for a preset number of times, when a data re-transmission request is received from the data collecting device.

10. The vehicle data communication method of claim 7, further comprising transmitting entire data to the data collecting device periodically at a preset cycle regardless of the data change.

11. The vehicle data communication method of claim 7, further comprising determining a data disuse area for a period of time during which non-available data is output,

wherein data output from the data disuse area is not transmitted to the data collecting device.

12. The vehicle data communication method of claim 7, in which the vehicle further comprise two or more vehicle controllers configured to generate the data, the method further comprising:

determining whether data output from the two or more vehicle controllers are duplicated; and

transmitting one of the data output from the two or more vehicle controllers to the data collecting device, when the data are duplicated based on the determination result.